<html>
<head>
<style>
div#blurred {
  box-shadow: 0 0 50px 0 #000;
  position: absolute;
  width: 100px;
  height: 100px;
  top: 30px;
  left: 60px;

  border-radius: 40px;
}
</style>
</head>
<body>
<div id="blurred"></div>
</body>
</html>
